﻿// -----------------------------------------------------------------------
// <copyright file="RemixQueryProvider.cs" company="Spardo, LLC">
// Copyright (c) 2011 SPardo, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a 
// copy of this software and associated documentation files (the "Software"), 
// to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
// and/or sell copies of the Software, and to permit persons to whom the 
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included 
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
// </copyright>
// -----------------------------------------------------------------------

namespace BBYOpen.Linq
{
    using System;
    using System.Linq;
    using System.Linq.Expressions;
    using System.Reflection;
    using BBYOpen.Linq.Common;

    /// <summary>
    /// TODO: Update summary.
    /// </summary>
    internal class RemixQueryProvider : IQueryProvider
    {
        public string ApiKey { get; private set; }

        public RemixQueryProvider(string apiKey)
        {
            this.ApiKey = apiKey;
        }

        #region IQueryProvider Members

        public IQueryable<TElement> CreateQuery<TElement>(Expression expression)
        {
            return new RemixQueryable<TElement>(this, expression);
        }

        public IQueryable CreateQuery(Expression expression)
        {
            Type elementType = TypeSystem.GetElementType(expression.Type);
            try
            {
                return (IQueryable)Activator.CreateInstance(typeof(RemixQueryable<>).MakeGenericType(elementType), new object[] { this, expression });
            }
            catch (TargetInvocationException tie)
            {
                throw tie.InnerException;
            }
        }

        public TResult Execute<TResult>(Expression expression)
        {
            return RemixExpressionVisitor.Execute<TResult>(this.ApiKey, expression);
        }

        public object Execute(Expression expression)
        {
            throw new NotImplementedException();
            //return RemixExpressionVisitor.Execute(this.ApiKey, expression, false);
        }

        #endregion
    }
}
